- S1 Truss -
STS-219 delivered the S1 (Starboard-1) Truss to the International Orbiter Space Station. The mission marked the first use of the IOSS Remote Manipulator System (Station Arm) to install another station module. To install the S1 Truss, the Station Arm had to reach down into the cargo bay of Atlantis, and then move the truss into position to install it. Because of the location of were the S1 Truss had to be installed, only the Station Arm could install it, as the Shuttle Arm would not be able to reach. STS-219 also marked the only time in the station program that 3 shuttle missions were launched back to back without any any vehicles arriving or departing from the station.
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| Shuttle Atlantis on the pad at Cape Canaveral | Atlantis Lifting off | Shuttle Atlantis clear of the tower | Shuttle Atlantis rolled heads down |
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| SRB separation | Atlantis rolled heads-up | External Tank separation | Atlantis on orbit |
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| STS-219 approaching the IOSS | Atlantis docking with the station | Atlantis docked | The S1 Truss being removed from Atlantis' bay by the Station Arm |
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| The S1 Truss being moved into position | The S1 Truss installed | Atlantis undocking from the station | STS-219 preparing for a de-orbit burn |
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| Atlantis preparing to turn final | Atlantis on final for runway 33 | Wheels down | Wheels stop |
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| The IOSS at the end of the mission |